Engine serial number

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   I have a block that is all apart at my house that I would like to find out about when it is from. The serial number 3J155075. Just curious about when that block would have been in a Jeep.

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buzzshipman Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 28 July 2007 Location: Woodstown, NJ Status: Offline Points: 170	Post Options Post Reply Quote buzzshipman Report Post Thanks(0) Quote Reply Topic: Engine serial number Posted: 24 May 2020 at 7:11pm
	I have a block that is all apart at my house that I would like to find out about when it is from. The serial number 3J155075. Just curious about when that block would have been in a Jeep.
	1946 CJ2A column shift 1961 CJ3B 1963 CJ5 1947 Empire Model 90 1982 CJ8

otto Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 26 Feb. 2012 Location: Orygun Status: Offline Points: 2264	Post Options Post Reply Quote otto Report Post Thanks(0) Quote Reply Posted: 24 May 2020 at 7:37pm
	I had J176350 in my 48, was the original engine.
	47 CJ2A w/fuel injected boat engine 48 CJ2A 64 Ford Econoline Travelwagon If you can't get there in a Jeep, get a motorcycle!

Mark W. Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member Joined: 09 Nov. 2014 Location: Silverton, OR Status: Offline Points: 7975	Post Options Post Reply Quote Mark W. Report Post Thanks(0) Quote Reply Posted: 24 May 2020 at 7:41pm
	Your serial #3J- 155075, is a late 50s, DJ-3A engine My engine is #3J 157012 and the DJ guys have told me it is a 58 or early 59 engine The last version of the 134L which was made up until 1971 used in industrial applications. Your number being a little lower would be 57-58 depending on DJ production numbers in 58.
	Chug A Lug 1948 2A Body Customized 1949 3A W/S 1957 CJ5 Frame Modified Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962

jezebeljeep Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 09 Sep. 2020 Location: North Carolina Status: Offline Points: 6	Post Options Post Reply Quote jezebeljeep Report Post Thanks(0) Quote Reply Posted: 09 Sep. 2020 at 9:09pm
	I am new to the CJ world - trying to decipher what I have. I've looked through the data, and am wondering if my motor is original to the vehicle? Can anyone point me in the right direction? 1947 Jeep CJ2A serial number 106573 (the body and frame numbers match) The engine has this stamp: 641087 - L -W4 and then AN1-CR-N2
	Katelijne van Drongelen triangleoffroad.com

Joe DeYoung Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member x 2 Joined: 20 July 2005 Location: Madison WI Status: Offline Points: 3358	Post Options Post Reply Quote Joe DeYoung Report Post Thanks(0) Quote Reply Posted: 09 Sep. 2020 at 9:16pm
	The 641087 you list is the blocks casting number which is correct for your jeep. The engine serial number should be located between the front of the cylinder head and the rear of the water pump. In some cases the number did get stamped on an oval raised pad on the upper right front side of the block... behind the oil filter canister... if you have one. BTW - this is kind of pirating someone else's thread. Would be best to post on your own thread. Edited by Joe DeYoung - 09 Sep. 2020 at 9:18pm
	Joe DeYoung to many jeeps, parts, and accessories to list here, but apparently enough to keep me in trouble with my wife.

SE Kansas 46 CJ-2A Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member x 3 Joined: 22 Jan. 2016 Location: S.E. Kansas Status: Offline Points: 3190	Post Options Post Reply Quote SE Kansas 46 CJ-2A Report Post Thanks(0) Quote Reply Posted: 09 Sep. 2020 at 9:19pm
	641087 - L -W4 and then AN1-CR-N2 is a casting number on the block and is not the stamped serial number of the engine. The original serial number if it is still there would be on a boss just above the water pump. It might not be there if the engine had been overhauled and the block was "decked" to true up any imperfections on the top of the block during the overhaul. By the way; welcome to the Forum. Ask questions. Read. Enjoy. Contribute. We like pictures of your jeep.
	46 CJ-2A #64462 "Ol' Red" (bought April 1969)(second owner)(12 V, 11" brakes, M-38 frame, MD Juan tub) U.S. Coast Guard Chief Petty Officer(ret.) U.S. Army Vietnam veteran and damned proud of it.

SE Kansas 46 CJ-2A Members Profile Send Private Message Find Members Posts Add to Buddy List Member Sponsor Member x 3 Joined: 22 Jan. 2016 Location: S.E. Kansas Status: Offline Points: 3190	Post Options Post Reply Quote SE Kansas 46 CJ-2A Report Post Thanks(0) Quote Reply Posted: 09 Sep. 2020 at 9:21pm
	Joe, you beat me by about 30 seconds. Good advice about starting your own thread though.
	46 CJ-2A #64462 "Ol' Red" (bought April 1969)(second owner)(12 V, 11" brakes, M-38 frame, MD Juan tub) U.S. Coast Guard Chief Petty Officer(ret.) U.S. Army Vietnam veteran and damned proud of it.

jezebeljeep Members Profile Send Private Message Find Members Posts Add to Buddy List Member Joined: 09 Sep. 2020 Location: North Carolina Status: Offline Points: 6	Post Options Post Reply Quote jezebeljeep Report Post Thanks(0) Quote Reply Posted: 09 Sep. 2020 at 9:58pm
	got it - thanks all! i thought these were organized by category - my bad!!
	Katelijne van Drongelen triangleoffroad.com